Patents by Inventor Kristofer JACOBSON

Kristofer JACOBSON has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Stylus identification
    Patent number: 11301089
    Abstract: An optical IR touch sensing apparatus configured to determine, based on output signals of light detectors, a light energy value for each light path across a touch surface, and generate a transmission value for each light path based on the light energy value. A processor is then configured to operate an image reconstruction algorithm on at least part of the thus-generated transmission values and determine a position of a touching object on the touch surface, and an attenuation value corresponding to the attenuation of the light resulting from the object touching the touch surface. Using these values, the processor is configured to identify the type of object.
    Type: Grant
    Filed: September 14, 2020
    Date of Patent: April 12, 2022
    Assignee: FlatFrog Laboratories AB
    Inventors: Tomas Christiansson, Mattias Krus, Kristofer Jacobson, David Gillsjö
  • Detecting a brush object with a touch sensing apparatus
    Patent number: 11175756
    Abstract: A touch sensing apparatus is disclosed comprising a touch surface, and a touch sensor configured to determine a first set of coordinates on the touch surface of an object in contact with the touch surface. The touch sensing apparatus is configured to determine a virtual brush angle associated with the object, determine a movement of the object to a second set of coordinates determine an updated virtual brush angle for the object in dependence on a position of the second set of coordinates relative to the first set of coordinates, and output the second set of coordinates and the updated virtual brush angle. An associated method is also disclosed.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: November 16, 2021
    Assignee: FlatFrog Laboratories AB
    Inventors: David Andersson, Kristofer Jacobson, Tomas Christiansson
  • STYLUS IDENTIFICATION
    Publication number: 20210103356
    Abstract: An optical IR touch sensing apparatus configured to determine, based on output signals of light detectors, a light energy value for each light path across a touch surface, and generate a transmission value for each light path based on the light energy value. A processor is then configured to operate an image reconstruction algorithm on at least part of the thus-generated transmission values and determine a position of a touching object on the touch surface, and an attenuation value corresponding to the attenuation of the light resulting from the object touching the touch surface. Using these values, the processor is configured to identify the type of object.
    Type: Application
    Filed: September 14, 2020
    Publication date: April 8, 2021
    Inventors: Tomas CHRISTIANSSON, Mattias KRUS, Kristofer JACOBSON, David GILLSJÖ
  • A TOUCH-SENSITIVE APPARATUS
    Publication number: 20210026466
    Abstract: A touch sensing apparatus is disclosed comprising a touch surface, and a touch sensor configured to determine a first set of coordinates on the touch surface of an object in contact with the touch surface. The touch sensing apparatus is configured to determine a virtual brush angle associated with the object, determine a movement of the object to a second set of coordinates determine an updated virtual brush angle for the object in dependence on a position of the second set of coordinates relative to the first set of coordinates, and output the second set of coordinates and the updated virtual brush angle. An associated method is also disclosed.
    Type: Application
    Filed: March 6, 2019
    Publication date: January 28, 2021
    Inventors: David ANDERSSON, Kristofer JACOBSON, Tomas CHRISTIANSSON
  • Stylus identification
    Patent number: 10775937
    Abstract: An optical IR touch sensing apparatus configured to determine, based on output signals of light detectors, a light energy value for each light path across a touch surface, and generate a transmission value for each light path based on the light energy value. A processor is then configured to operate an image reconstruction algorithm on at least part of the thus-generated transmission values and determine a position of a touching object on the touch surface, and an attenuation value corresponding to the attenuation of the light resulting from the object touching the touch surface. Using these values, the processor is configured to identify the type of object.
    Type: Grant
    Filed: December 7, 2016
    Date of Patent: September 15, 2020
    Assignee: FlatFrog Laboratories AB
    Inventors: Tomas Christiansson, Mattias Krus, Kristofer Jacobson, David Gillsjö
  • IMPROVED STYLUS IDENTIFICATION
    Publication number: 20180356940
    Abstract: An optical IR touch sensing apparatus configured to determine, based on output signals of light detectors, a light energy value for each light path across a touch surface, and generate a transmission value for each light path based on the light energy value. A processor is then configured to operate an image reconstruction algorithm on at least part of the thus-generated transmission values and determine a position of a touching object on the touch surface, and an attenuation value corresponding to the attenuation of the light resulting from the object touching the touch surface. Using these values, the processor is configured to identify the type of object.
    Type: Application
    Filed: December 7, 2016
    Publication date: December 13, 2018
    Inventors: Tomas CHRISTIANSSON, Mattias KRUS, Kristofer JACOBSON, David GILLSJÖ